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Finding the Fourth Proportional to 229,637.66, 344,613.18 and 79,876.46

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Solution

The fourth proportional to 229,637.66, 344,613.18 and 79,876.46 is: 119,869.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,637.66 : 344,613.18 = 79,876.46 : x
  2. Step 2: Convert to fraction form
    229,637.66/344,613.18 = 79,876.46/x
  3. Step 3: Cross multiply
    229,637.66x = 344,613.18 × 79,876.46
  4. Step 4: Simplify right side
    229,637.66x = 27,526,480,887.74
  5. Step 5: Solve for x
    x = 27,526,480,887.74/229,637.66
  6. Step 6: Final answer
    x = 119,869.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.